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Juvenile deliquency increases early sexual activity The study also found the youths' involvement in delinquent acts drastically increases the chances of early sexual activity.

The authors report that periods of instability in family structure and welfare use serve as risk factors for early sexual activity.

Boys also had nearly 10 percent higher frequency of intercourse than girls and were also more likely to experience sexual debut 20 percent to 14 percent between the two years when the first two waves of data were collected.